HYDROLOGICAL STATIONS NETWORK IN ETHIOPIA

Hydrological data are collected, from the stream and Lakes gauging stations, to provide information for developing and managing the water resources of the country. They are also used for forecasting flood discharges or stages, low flows, monthly and, in some cases yearly discharges for operation of reservoirs and hydroelectric plants, etc.....

There are 12 major river basins in Ethiopia . The total annual surface run off from these basins is about 110 billion m 3 . Ethiopia has 8 major natural lakes. Most of the natural lakes are situated in the rift valley. Many lakes have the potential to provide large sustainable yields of fish. The rift valley lakes are sanctuaries of different species of birds.

The Hydrological Department under the Ministry of Water Resources is responsible for hydrological data collection, processing analysis and dissemination to users. The data collection activities are mainly engaged in surface water resources assessment which currently comprises collection of stream flow data, recording of suspended sediment sampling data and water quality. The hydrological network for both stream and lake consist of 560 gauging stations in 12 river basins of which 454 are at present operational throughout the country. Basin-wide classification of these stations is given in the following table.

HYDROLOGICAL STATIONS BY RIVER BASIN

YDROLOGICAL STATIONS LOCATION MAP